| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] have been [vb pp] [prep] | 37 |
|
| 2 | it [verb] to have been [vb pp] [prep] | 27 |
|
| 3 | it [vb -s] have been [vb pp] [prep] | 26 |
|
| 4 | it seem have been [vb pp] [prep] | 16 |
|
| 5 | it seems have been [vb pp] [prep] | 15 |
|
| 6 | it [verb] have been [vb pp] by | 11 |
|
| 7 | it [vb past] have been [vb pp] [prep] | 11 |
|
| 8 | it appear have been [vb pp] [prep] | 10 |
|
| 9 | it appears have been [vb pp] [prep] | 6 |
|
| 10 | it [verb] had been [vb pp] [prep] | 5 |
|
